COULTER SEEDER UNIT Russian patent published in 2018 - IPC A01C7/20 

FIELD: agriculture.

SUBSTANCE: invention relates to seeding machines, in particular to parts of seeders serving to direct and lay seeds. Cutting blades of flat-cutting knives of a cultivator paw with a chisel are made on logarithmic curves symmetrical with respect to the rack. To post 1, by means of a hinged connection, is attached a packing device consisting of frame 7, in the lower part of which, behind diffuser 3, the rolling compactor is mounted in the form of an ellipsoid of rotation. Shape of the transverse profile of the roller coincides with the shape of the cutting blades of the flat knives. Left and right plate-shaped concealers, symmetrically arranged with respect to the longitudinal axis, are attached to the frame behind the compacting roller, in the form of segments of a logarithmic spiral. Frame 7 is spring-loaded by spring 10 in relation to frame 11 of the seed drill. Behind the flat knives, a curved flap is attached to post 1, covering the gap from the flat knives to the top of the compacting roller.

EFFECT: technical result achieved is increased yield of agricultural plants with a close contact of their seeds with the soil during sowing, which improves the supply of soil moisture to the seeds in conditions of insufficient moistening of the soil and accelerating their germination.

1 cl, 2 dwg